Patchwork: an open-sourced wiki-like microblogging tool

Let me announce a new project Patchwork, a microblogging tool.

demo working at:
code hosted at:
(under the MIT license)

The idea:
posts and comments are the same thing. You can
1. create an original piece of text
2. write below another piece
3. write above another piece
4. create a fork of another piece and edit it.

Yoichi Hirai